X-Git-Url: https://wannabe.guru.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=histogram.py;h=f85abea2c45f05ef65c70657bd1b2b6f53f04c04;hb=e8fbbb7306430478dec55d2c963eed116d8330cc;hp=cea8b766e3f88a3e197cbdff128539f199fdc83a;hpb=7ff2af6fe7bffea90dc4a31c93140c189917c659;p=python_utils.git

diff --git a/histogram.py b/histogram.py
index cea8b76..f85abea 100644
--- a/histogram.py
+++ b/histogram.py
@@ -1,7 +1,9 @@
 #!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+"""A text-based simple histogram helper class."""
 
 import math
-from numbers import Number
 from typing import Dict, Generic, Iterable, List, Optional, Tuple, TypeVar
 
 T = TypeVar("T", int, float)
@@ -10,6 +12,8 @@ Count = int
 
 
 class SimpleHistogram(Generic[T]):
+    """A simple histogram."""
+
     # Useful in defining wide open bottom/top bucket bounds:
     POSITIVE_INFINITY = math.inf
     NEGATIVE_INFINITY = -math.inf
@@ -81,7 +85,7 @@ class SimpleHistogram(Generic[T]):
                 last_bucket_start = bucket[0]  # beginning of range
             if max_population is None or pop > max_population:
                 max_population = pop  # bucket with max items
-        if len(self.buckets) == 0 or max_population is None:
+        if max_population is None:
             return txt
 
         max_label_width: Optional[int] = None